Researchers found that a certain group of orcas are killing porpoises for an unknown purpose. The orcas could be doing it just for fun or to teach hunting skills to younger members of the pod. The ...

Orcas are the oceans’ apex predator, even outranking the great white shark, but their hunting behaviors are still not fully understood by scientists. Robert Pittman / NOAA via Wikimedia Commons For ...

OCEANSIDE, Calif. (KGTV) - Whale watchers enjoyed a rare encounter off the Southern California coast Monday: four orcas teaming up to prey on dolphins. “It’s very, very rare,” said Oceanside Whale ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. It was an orca ...

In a rare video captured by a whale watching expedition off the coast of San Diego this week, a killer whale teaches its baby how to hunt by headbutting a dolphin, causing it to flip several times in ...

Afelandra Glez Cibrián recorded the moment a dolphin jumped out of the ocean and an orca came after it in the southern Gulf of Mexico. Video screenshot A group of boaters found themselves in a ...

The killer whales came for a buffet. A pod of orcas, thought to be Eastern Tropical Pacific killer whales only seen along the Southern California coast a few times, made a surprise appearance off San ...

“Dolphins we see 98 percent of the time. Killer whales—it's rare to see them,” he says ... Her preference for downing yachts made her an eat-the-rich icon on social media. The paper speculated that ...